Nexval Infotech Junior Developer Interview Questions and Answers

Pseudocode problems and 2 coding questions

Q1. Introduction, family background, logical question of English alphabet
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Q1. AI/ML trends, bitcoin info
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Q2. Java code for finding even number
Ans. 
Java code to find even numbers in an array
• Iterate through the array and check if each element is divisible by 2

• Use the modulus operator (%) to check for even numbers

• Store the even numbers in a separate array or print them out
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Q3. Basic questions about technologies mentioned in the resume
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Q1. Intro, family background
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Q2. HTML, CSS, JAVA, CPP code
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Q3. Logical Questions
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Q4. Speaking Communication
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Q1. Erg t igiu i g i hg i yt i g i gt i
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Q2. Rfg on hno frg dgh fgr
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Q1. Theories of failure, in depth
Ans. 
Theories of failure explain how and why materials fail under different conditions.
• Theories of failure are used to predict the failure of materials under different loads and conditions.

• There are different types of theories of failure, including maximum shear stress theory, maximum normal stress theory, and maximum strain energy theory.

• Maximum shear stress theory states that failure occurs when the maximum shear stress i...read more
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Q2. Basic material properties
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Basic material properties include density, strength, hardness, elasticity, and conductivity.
• Density refers to the mass per unit volume of a material.

• Strength is the ability of a material to withstand external forces without breaking or deforming.

• Hardness is the resistance of a material to indentation or scratching.

• Elasticity is the ability of a material to return to its original shape after being deformed.

• Conductivity ...read more
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Q1. Tell me about yourself.
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Q2. Tell me about yourself
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Questions based on coding

Based on coding questions

Q1. Introduction of yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding. I have experience with Java, Python, and web development.
• Recent graduate in Computer Science

• Proficient in Java, Python, and web development

• Passionate about coding
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Q2. About dbms , sql queries..
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Test contain mix question from computer fundamentals and aptitude

Q1. Find the leaf node of the binary tree
Ans. 
A leaf node in a binary tree is a node that does not have any children.
• Traverse the binary tree and check if a node has no left or right child, then it is a leaf node.

• Example: In the binary tree 1 -> 2, 3 -> 4, 5, 6 -> 7, 8, the leaf nodes are 4, 5, 7, 8.
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Q2. Check if the given linked list contain loop
Ans. 
Check if a linked list contains a loop by using Floyd's cycle detection algorithm.
• Use two pointers, one moving at twice the speed of the other

• If there is a loop, the two pointers will eventually meet

• Example: 1->2->3->4->5->2 (loop at 2)
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Q3. Find the fist non repeating element in string
Ans. 
Find the first non-repeating element in a string
• Create a frequency map of characters in the string

• Iterate through the string and check the frequency of each character

• Return the first character with frequency 1
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